@charset "UTF-8";
/* ==========================================================================
   陕西航投安平新材料 · 前台共享样式（A 版「工程精度」设计系统）
   仅用于对外前台页面：index / products / cases / news / contact
   后台（templates/admin/*）继续使用 /static/css/style.css，两者互不影响。
   ========================================================================== */

/* ---------- 设计令牌 ---------- */
:root{
  --navy:#0F2E4C; --navy-2:#0A1F36; --navy-3:#173E63;
  --orange:#FF6A13; --orange-d:#E85C08;
  --silver:#E8EBEF; --silver-2:#F4F6F8;
  --ink:#16222E; --muted:#5C6B7A; --line:#D8DEE5;
  --ok:#1D6B37; --ok-bg:#EAF7EE; --ok-line:#A8DCB8;
  --err:#8A1F1F; --err-bg:#FDECEC; --err-line:#F3BFBF;
  --mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Consolas,monospace;
  --sans:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --max:1240px;
}

/* ---------- 基础 ---------- */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--sans);color:var(--ink);background:#fff;line-height:1.65;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%}
button{font-family:inherit}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
section{padding:82px 0}
section[id],div[id]{scroll-margin-top:92px}
.hidden{display:none !important}
.grid-bg{background-image:linear-gradient(rgba(15,46,76,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(15,46,76,.045) 1px,transparent 1px);background-size:28px 28px}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.tag-num{font-family:var(--mono);font-size:12px;font-weight:700;color:var(--orange);letter-spacing:.12em}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--orange);font-weight:700}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}

/* ---------- 顶栏 ---------- */
.topbar{background:var(--navy-2);color:#9FB3C6;font-size:13px}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;height:40px;gap:16px}
.topbar b{color:#fff;font-weight:500}
.topbar .tb-l{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.topbar .tb-r{display:flex;gap:22px;align-items:center;flex-shrink:0}
.topbar .tb-r span{display:flex;align-items:center;gap:6px}
.topbar a:hover{color:#fff}

/* ---------- 导航 ---------- */
.header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line)}
.header .wrap{display:flex;align-items:center;height:76px;gap:28px;position:relative}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0}
.logo img{height:38px;width:auto}
.logo .lg-txt{display:flex;flex-direction:column;line-height:1.15}
.logo .lg-txt b{font-size:17px;font-weight:800;letter-spacing:.02em;color:var(--navy)}
.logo .lg-txt i{font-style:normal;font-family:var(--mono);font-size:12px;letter-spacing:.14em;color:var(--muted)}
.nav{display:flex;gap:4px;margin-left:auto}
.nav a{padding:10px 14px;font-size:15px;font-weight:500;color:#2A3B4C;border-radius:4px;position:relative}
.nav a:hover{color:var(--navy);background:var(--silver-2)}
.nav a.on{color:var(--navy);font-weight:700}
.nav a.on::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:var(--orange)}
.hd-cta{display:flex;gap:10px;flex-shrink:0}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 18px;border-radius:4px;font-size:14.5px;font-weight:700;border:1px solid transparent;transition:.18s;white-space:nowrap;cursor:pointer;font-family:inherit}
.btn-tel{background:var(--orange);color:#fff}
.btn-tel:hover{background:var(--orange-d)}
.btn-wx{background:#fff;color:var(--navy);border-color:var(--line)}
.btn-wx:hover{border-color:var(--navy)}
.btn-lg{padding:15px 28px;font-size:16px;border-radius:5px}
.btn-hero{background:var(--orange);color:#fff;box-shadow:0 8px 24px rgba(255,106,19,.32)}
.btn-hero:hover{background:var(--orange-d)}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.4)}
.btn-ghost:hover{background:rgba(255,255,255,.16)}
.btn-sm{padding:9px 15px;font-size:13.5px;border-radius:3px;border:1px solid var(--navy);color:var(--navy);background:#fff;font-weight:700}
.btn-sm:hover{background:var(--navy);color:#fff}
.btn-dark{background:var(--navy);color:#fff}
.btn-dark:hover{background:var(--navy-3)}
.btn-outline{background:#fff;color:var(--navy);border-color:var(--navy)}
.btn-outline:hover{background:var(--navy);color:#fff}
.btn[disabled],.btn[aria-disabled="true"]{opacity:.55;cursor:not-allowed}
.burger{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:4px;background:#fff;align-items:center;justify-content:center;cursor:pointer}
.burger svg{width:22px;height:22px}

/* ---------- 首页首屏（轮播 + 工程参数条） ---------- */
.hero{position:relative;padding:0;overflow:hidden;background:var(--navy-2)}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:grayscale(.35) contrast(1.05);opacity:1;transition:opacity .85s ease;z-index:0}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(10,31,54,.95) 0%,rgba(15,46,76,.86) 45%,rgba(15,46,76,.55) 100%)}
.hero-bg-2{opacity:0}
.hero-main{position:relative;z-index:2}
.hero > .grid-tex{position:absolute;inset:0;z-index:1;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:28px 28px;pointer-events:none}
.hero .wrap{position:relative;z-index:2;padding-top:90px;padding-bottom:52px;width:100%}
.hero-in{max-width:800px}
.hero-slider{position:relative;margin-top:16px}
.hero-slide{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .65s ease}
.hero-slide.active{opacity:1;visibility:visible}
.hero h1{font-size:clamp(30px,4.4vw,56px);line-height:1.18;font-weight:800;color:#fff;letter-spacing:-.01em;margin:0}
.hero h1 em{font-style:normal;color:var(--orange)}
.hero p.lead{margin-top:18px;font-size:16.5px;color:#B9CADB;max-width:640px}
.hero .spec-line{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.spec-line span{font-family:var(--mono);font-size:13px;font-weight:700;color:#DCE6F0;border:1px solid rgba(255,255,255,.28);padding:6px 12px;border-radius:3px;background:rgba(255,255,255,.05)}
.hero-cta{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.hero-dots{position:absolute;right:24px;bottom:26px;z-index:3;display:flex;gap:8px}
.hero-dots button{width:26px;height:4px;border:0;border-radius:2px;background:rgba(255,255,255,.32);cursor:pointer;padding:0}
.hero-dots button.active{background:var(--orange);width:38px}
.hero-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:3;width:42px;height:42px;border:1px solid rgba(255,255,255,.3);background:rgba(10,31,54,.5);border-radius:4px;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center}
.hero-arrow:hover{background:rgba(255,106,19,.85);border-color:transparent}
.hero-arrow.prev{left:16px}
.hero-arrow.next{right:16px}
.hero-arrow svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.hero-stats{position:relative;z-index:2;background:rgba(10,31,54,.86);border-top:1px solid rgba(255,255,255,.14)}
.hero-stats .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:1px}
.hero-stats .st{padding:22px 0;position:relative}
.hero-stats .st + .st::before{content:"";position:absolute;left:-0.5px;top:22%;height:56%;width:1px;background:rgba(255,255,255,.16)}
.hero-stats .st b{display:block;font-family:var(--mono);font-size:34px;font-weight:800;color:#fff;line-height:1}
.hero-stats .st b i{font-style:normal;font-size:16px;color:var(--orange);margin-left:3px}
.hero-stats .st span{display:block;font-size:13.5px;color:#9FB3C6;margin-top:8px}

/* ---------- 内页 Banner ---------- */
.page-hero{position:relative;background:var(--navy-2);overflow:hidden;padding:0}
.page-hero .bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:grayscale(.42) contrast(1.05)}
.page-hero .bg::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(10,31,54,.96) 0%,rgba(15,46,76,.88) 48%,rgba(15,46,76,.62) 100%)}
.page-hero .grid-tex{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:28px 28px}
.page-hero .wrap{position:relative;z-index:2;padding:58px 24px 54px;width:100%}
.crumbs{font-family:var(--mono);font-size:12.5px;color:#8FA6BC;letter-spacing:.06em}
.crumbs a:hover{color:#fff}
.crumbs span{margin:0 8px;opacity:.6}
.page-hero h1{font-size:clamp(28px,3.9vw,46px);line-height:1.2;font-weight:800;color:#fff;letter-spacing:-.01em;margin-top:16px}
.page-hero h1 em{font-style:normal;color:var(--orange)}
.page-hero p.lead{margin-top:16px;font-size:16.5px;color:#B9CADB;max-width:700px}
.page-hero .spec-line{margin-top:24px}

/* ---------- 区块标题 ---------- */
.sec-h{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.sec-h .l{display:flex;flex-direction:column;gap:9px}
.sec-h h2{font-size:clamp(24px,2.9vw,34px);font-weight:800;color:var(--navy);letter-spacing:-.01em;line-height:1.25}
.sec-h h2 u{text-decoration:none;box-shadow:inset 0 -12px 0 rgba(255,106,19,.16)}
.sec-h .sub{font-size:15px;color:var(--muted);max-width:620px}
.sec-h.light h2{color:#fff}
.sec-h.light .sub{color:#B9CADB}
.sec-h.light h2 u{box-shadow:inset 0 -12px 0 rgba(255,106,19,.28)}
.more{font-family:var(--mono);font-size:13px;font-weight:700;color:var(--navy);border-bottom:2px solid var(--orange);padding-bottom:3px;white-space:nowrap}

/* ---------- 业务板块 ---------- */
.biz{background:var(--silver-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.biz-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.biz-card{background:#fff;border:1px solid var(--line);border-radius:6px;padding:28px 24px 26px;position:relative;transition:.2s;display:block}
.biz-card:hover{border-color:var(--navy);transform:translateY(-3px);box-shadow:0 14px 30px rgba(15,46,76,.09)}
.biz-card .n{position:absolute;top:16px;right:20px;font-family:var(--mono);font-size:13px;font-weight:700;color:#C6D0DA}
.biz-card .ic{width:46px;height:46px;color:var(--navy);margin-bottom:18px}
.biz-card .ic svg{width:100%;height:100%;stroke:currentColor;fill:none;stroke-width:1.6}
.biz-card h3{font-size:18px;font-weight:700;color:var(--navy);margin-bottom:9px}
.biz-card p{font-size:14px;color:var(--muted);min-height:44px}
.biz-card .go{margin-top:14px;font-family:var(--mono);font-size:12.5px;font-weight:700;color:var(--orange);display:flex;align-items:center;gap:6px}

/* ---------- 租赁方案卖点（深色） ---------- */
.rental{background:var(--navy);color:#fff;position:relative;overflow:hidden}
.rental .grid-tex{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);background-size:28px 28px}
.rental .wrap{position:relative;z-index:2}
.calc{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.calc h2{font-size:clamp(26px,3.2vw,38px);font-weight:800;line-height:1.22;color:#fff}
.calc h2 em{font-style:normal;color:var(--orange)}
.calc > div > p{margin-top:18px;color:#B9CADB;font-size:16px;max-width:540px}
.calc ul{margin-top:24px;display:grid;gap:12px;list-style:none}
.calc li{list-style:none;display:flex;gap:11px;font-size:15px;color:#DCE6F0}
.calc li svg{width:19px;height:19px;flex-shrink:0;stroke:var(--orange);fill:none;stroke-width:2.4;margin-top:3px}
.calc-panel{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.2);border-radius:8px;padding:26px}
.calc-panel h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;font-family:var(--mono);letter-spacing:.08em}
.cf{display:flex;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px dashed rgba(255,255,255,.18);font-size:14.5px}
.cf span:first-child{color:#9FB3C6;flex-shrink:0}
.cf span:last-child{font-family:var(--mono);font-weight:700;color:#fff;text-align:right}
.cf span:last-child.pending{color:#8FA6BC;font-weight:400}
.calc-total{display:flex;justify-content:space-between;align-items:baseline;gap:14px;margin-top:20px;padding-top:18px;border-top:1px solid rgba(255,255,255,.28);flex-wrap:wrap}
.calc-total .t{font-size:14px;color:#9FB3C6}
.calc-total b{font-family:var(--mono);font-size:clamp(24px,2.6vw,30px);color:var(--orange);font-weight:800;line-height:1.2}
.calc-note{margin-top:14px;font-size:12.5px;color:#8FA6BC;line-height:1.75}

/* ---------- 产品卡 ---------- */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.p-card{border:1px solid var(--line);border-radius:6px;overflow:hidden;background:#fff;transition:.2s;display:flex;flex-direction:column}
.p-card:hover{box-shadow:0 16px 34px rgba(15,46,76,.11);border-color:#B9C6D3}
.p-thumb{aspect-ratio:4/3;overflow:hidden;background:var(--silver-2);position:relative}
.p-thumb img,.p-thumb video{width:100%;height:100%;object-fit:cover;transition:.4s;display:block}
.p-card:hover .p-thumb img{transform:scale(1.05)}
.p-cat{position:absolute;top:12px;left:12px;background:rgba(15,46,76,.9);color:#fff;font-size:12px;padding:4px 10px;border-radius:3px;font-family:var(--mono);letter-spacing:.06em;z-index:2}
.p-body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1}
.p-body h3{font-size:17.5px;font-weight:700;color:var(--navy);line-height:1.4}
.p-body p{font-size:13.5px;color:var(--muted);margin-top:9px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.p-spec{margin-top:10px;font-family:var(--mono);font-size:12.5px;color:var(--muted);background:var(--silver-2);padding:7px 10px;border-radius:3px;border-left:3px solid var(--orange);line-height:1.6}
.p-foot{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px dashed var(--line)}
.price{font-family:var(--mono);font-size:19px;font-weight:800;color:var(--navy)}
.price i{font-style:normal;font-size:12px;font-weight:500}
.price.ask{font-size:14px;color:var(--orange);font-weight:700}
.video-badge{position:absolute;right:12px;top:12px;background:rgba(10,31,54,.82);color:#fff;font-size:12px;padding:4px 9px;border-radius:3px;display:flex;align-items:center;gap:5px;z-index:2;font-family:var(--mono)}
.video-badge svg{width:13px;height:13px;stroke:currentColor;fill:none;stroke-width:2}

/* ---------- 案例卡 ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.c-card{border:1px solid var(--line);border-radius:6px;overflow:hidden;background:#fff;display:flex;flex-direction:column;transition:.2s;cursor:pointer;text-align:left}
.c-card:hover{box-shadow:0 16px 34px rgba(15,46,76,.11);border-color:#B9C6D3}
.c-thumb{aspect-ratio:16/10;overflow:hidden;position:relative;background:var(--silver-2)}
.c-thumb img,.c-thumb video{width:100%;height:100%;object-fit:cover;display:block}
.c-thumb .city{position:absolute;bottom:0;left:0;right:0;padding:10px 14px;background:linear-gradient(transparent,rgba(10,31,54,.88));color:#fff;font-size:13.5px;display:flex;align-items:center;gap:7px}
.c-thumb .city svg{width:14px;height:14px;stroke:#fff;fill:none;stroke-width:2}
.c-body{padding:20px;display:flex;flex-direction:column;flex:1}
.c-cat{font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--orange);font-weight:700}
.c-body h3{font-size:16.5px;font-weight:700;color:var(--navy);margin-top:9px;line-height:1.42}
.c-body p{font-size:13.5px;color:var(--muted);margin-top:11px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.c-meta{margin-top:14px;padding-top:12px;border-top:1px dashed var(--line);display:flex;gap:16px;flex-wrap:wrap;font-family:var(--mono);font-size:12px;color:var(--muted)}
.c-meta span{display:flex;align-items:center;gap:5px}
.c-meta svg{width:13px;height:13px;stroke:currentColor;fill:none;stroke-width:2;flex-shrink:0}
.spec-table{margin-top:16px;border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line)}
.spec-table div{background:#fff;padding:9px 6px;text-align:center}
.spec-table b{display:block;font-family:var(--mono);font-size:16px;font-weight:800;color:var(--navy);line-height:1.1}
.spec-table b i{font-style:normal;font-size:11px;color:var(--muted);font-weight:500;margin-left:1px}
.spec-table span{display:block;font-size:12px;color:var(--muted);margin-top:4px}

/* ---------- 新闻 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.n-card{display:flex;gap:18px;border:1px solid var(--line);border-radius:6px;overflow:hidden;background:#fff;transition:.2s;cursor:pointer;text-align:left}
.n-card:hover{border-color:#B9C6D3;box-shadow:0 12px 26px rgba(15,46,76,.09)}
.n-card .n-img{width:190px;flex-shrink:0;background:var(--silver-2);overflow:hidden}
.n-card .n-img img{width:100%;height:100%;object-fit:cover;display:block}
.n-card .n-bd{padding:18px 20px 18px 0;display:flex;flex-direction:column}
.n-date{font-family:var(--mono);font-size:12px;color:var(--orange);font-weight:700;letter-spacing:.06em;display:flex;gap:12px;flex-wrap:wrap}
.n-card h3{font-size:16.5px;font-weight:700;color:var(--navy);margin-top:9px;line-height:1.45}
.n-card p{font-size:13.5px;color:var(--muted);margin-top:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- 资质信任 ---------- */
.trust{background:var(--silver-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.tr-card{background:#fff;border:1px solid var(--line);border-radius:6px;padding:22px;text-align:center}
.tr-card .bo{width:56px;height:56px;margin:0 auto 14px;border-radius:50%;background:var(--navy);display:flex;align-items:center;justify-content:center}
.tr-card .bo svg{width:26px;height:26px;stroke:#fff;fill:none;stroke-width:1.7}
.tr-card h4{font-size:15.5px;font-weight:700;color:var(--navy)}
.tr-card p{font-size:13px;color:var(--muted);margin-top:7px}
.logo-wall{margin-top:34px;padding-top:28px;border-top:1px solid var(--line)}
.logo-wall h5{font-family:var(--mono);font-size:12px;letter-spacing:.18em;color:var(--muted);text-align:center;font-weight:700}
.logo-wall .row{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:18px}
.logo-wall .row span{border:1px solid var(--line);background:#fff;color:#536374;padding:11px 20px;border-radius:4px;font-size:13.5px;font-weight:600}

/* ---------- 深色 CTA 带 ---------- */
.cta-band{background:var(--navy-2);color:#fff;position:relative;overflow:hidden;padding:64px 0}
.cta-band .grid-tex{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:28px 28px}
.cta-band .in{position:relative;z-index:2;display:flex;justify-content:space-between;align-items:center;gap:34px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(22px,2.8vw,32px);font-weight:800;line-height:1.3}
.cta-band h2 em{font-style:normal;color:var(--orange)}
.cta-band p{color:#B9CADB;margin-top:12px;font-size:15.5px;max-width:600px}
.cta-band .acts{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 筛选标签 ---------- */
.tabs{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:32px}
.tab-btn{padding:9px 18px;border:1px solid var(--line);background:#fff;border-radius:4px;font-size:14px;font-weight:600;color:#2A3B4C;cursor:pointer;transition:.16s;font-family:inherit}
.tab-btn:hover{border-color:var(--navy);color:var(--navy)}
.tab-btn.active{background:var(--navy);border-color:var(--navy);color:#fff}

/* ---------- 搜索栏 ---------- */
.filter-bar{display:flex;gap:12px;margin-bottom:30px;flex-wrap:wrap}
.filter-bar input{flex:1;min-width:240px;padding:12px 14px;border:1px solid var(--line);border-radius:4px;font-size:15px;font-family:inherit;color:var(--ink);background:#fff;transition:.16s}
.filter-bar input:focus{outline:none;border-color:var(--orange);box-shadow:0 0 0 3px rgba(255,106,19,.13)}
.filter-bar input::placeholder{color:#9AA8B5}

/* ---------- 分页 ---------- */
.pagination{display:flex;justify-content:center;gap:8px;margin-top:44px;flex-wrap:wrap}
.pagination button{min-width:40px;height:40px;padding:0 12px;border:1px solid var(--line);background:#fff;border-radius:4px;font-family:var(--mono);font-size:14px;font-weight:700;color:var(--navy);cursor:pointer;display:inline-flex;align-items:center;justify-content:center}
.pagination button:hover:not([disabled]){border-color:var(--navy)}
.pagination button.active{background:var(--navy);border-color:var(--navy);color:#fff}
.pagination button[disabled]{opacity:.45;cursor:default}
.pagination svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* ---------- 空状态 ---------- */
.empty-state{text-align:center;padding:70px 20px;border:1px dashed var(--line);border-radius:8px;background:var(--silver-2)}
.empty-state svg{width:46px;height:46px;stroke:#9AA8B5;fill:none;stroke-width:1.5;margin:0 auto 16px}
.empty-state h3{font-size:18px;font-weight:700;color:var(--navy)}
.empty-state p{font-size:14px;color:var(--muted);margin-top:8px}

/* ---------- 模态框 ---------- */
.modal{position:fixed;inset:0;background:rgba(10,31,54,.62);z-index:120;display:none;align-items:flex-start;justify-content:center;padding:44px 20px;overflow-y:auto}
.modal.active{display:flex}
.modal-content{background:#fff;border-radius:8px;width:100%;max-width:760px;box-shadow:0 30px 70px rgba(10,31,54,.4);overflow:hidden}
.modal-header{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;padding:22px 26px;border-bottom:1px solid var(--line);background:var(--silver-2)}
.modal-header h3{font-size:19px;font-weight:800;color:var(--navy);line-height:1.4}
.modal-close{width:36px;height:36px;border:1px solid var(--line);background:#fff;border-radius:4px;cursor:pointer;color:var(--navy);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:20px;line-height:1}
.modal-close:hover{border-color:var(--navy)}
.modal-body{padding:26px}
.detail-meta{display:flex;gap:18px;padding:14px 16px;background:var(--silver-2);border-radius:6px;margin-bottom:22px;flex-wrap:wrap;font-family:var(--mono);font-size:13px;color:var(--muted)}
.detail-meta span{display:flex;align-items:center;gap:6px}
.detail-meta svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:2;flex-shrink:0}
.detail-block{margin-bottom:22px}
.detail-block h4{font-size:16px;font-weight:800;color:var(--navy);margin-bottom:12px;padding-bottom:9px;border-bottom:1px solid var(--line)}
.detail-block p{font-size:14.5px;color:#3A4A59;line-height:1.85}
.detail-block .body{font-size:14.5px;color:#3A4A59;line-height:1.85;word-break:break-word}
.detail-block .body img{max-width:100%;height:auto;border-radius:6px;margin:12px 0}
.detail-block.body{font-size:14.5px;color:#3A4A59;line-height:1.85;word-break:break-word}
.detail-block.body img{max-width:100%;height:auto;border-radius:6px;margin:12px 0}

/* ---------- 表单（询价 / 留言） ---------- */
.form-wrap{display:grid;grid-template-columns:1.12fr .88fr;gap:44px;align-items:start}
.q-card{background:#fff;border:1px solid var(--line);border-radius:8px;padding:32px;box-shadow:0 14px 40px rgba(15,46,76,.07)}
.q-card > h2{font-size:22px;font-weight:800;color:var(--navy)}
.q-card > p.sub{font-size:14px;color:var(--muted);margin:8px 0 24px}
.fld{margin-bottom:18px}
.fld label{display:block;font-size:14px;font-weight:700;color:var(--navy);margin-bottom:8px}
.fld label i{font-style:normal;font-size:14px;color:var(--orange);margin-left:2px}
.fld label s{text-decoration:none;font-weight:400;font-size:12.5px;color:var(--muted);margin-left:6px}
.fld input,.fld select,.fld textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:4px;font-size:15px;font-family:inherit;color:var(--ink);background:#fff;transition:.16s}
.fld textarea{resize:vertical;min-height:110px;line-height:1.65}
.fld input:focus,.fld select:focus,.fld textarea:focus{outline:none;border-color:var(--orange);box-shadow:0 0 0 3px rgba(255,106,19,.13)}
.fld input::placeholder,.fld textarea::placeholder{color:#9AA8B5}
.fld .hint{font-size:12.5px;color:var(--muted);margin-top:6px;line-height:1.6}
.fld-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-alert{display:none;border-radius:6px;padding:14px 16px;font-size:14px;margin-bottom:20px;line-height:1.7;border:1px solid transparent}
.form-alert.show{display:block}
.form-alert.success{background:var(--ok-bg);border-color:var(--ok-line);color:var(--ok)}
.form-alert.error{background:var(--err-bg);border-color:var(--err-line);color:var(--err)}
.form-alert b{display:block;font-size:14.5px;margin-bottom:3px}

/* ---------- 侧栏信息卡 ---------- */
.side-col{display:flex;flex-direction:column;gap:22px}
.info-card{background:#fff;border:1px solid var(--line);border-radius:8px;padding:28px;box-shadow:0 14px 40px rgba(15,46,76,.07)}
.info-card.dark{background:var(--navy);border-color:var(--navy-3);color:#fff;box-shadow:none}
.info-card.dark h3{color:#fff}
.info-card.dark .info-item h4{color:var(--orange)}
.info-card.dark .info-item p{color:#DCE6F0}
.info-card.dark .info-item p a:hover{color:#fff}
.info-card .ic-eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.18em;color:var(--orange);font-weight:700}
.info-card h3{font-size:19px;font-weight:800;color:var(--navy);margin-top:10px}
.info-list{display:flex;flex-direction:column;gap:18px;margin-top:22px}
.info-item{display:flex;align-items:flex-start;gap:14px}
.info-item .ic{width:36px;height:36px;flex-shrink:0;border-radius:4px;background:var(--silver-2);display:flex;align-items:center;justify-content:center;color:var(--navy)}
.info-card.dark .info-item .ic{background:rgba(255,255,255,.09);color:var(--orange)}
.info-item .ic svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.8}
.info-item .content{flex:1;min-width:0;padding-top:1px}
.info-item h4{font-size:13px;color:var(--navy);font-weight:700;margin-bottom:4px;letter-spacing:.02em}
.info-item p{font-size:14px;color:var(--muted);line-height:1.6;word-break:break-word}
.info-item p a:hover{color:var(--navy)}
.qr-box{width:104px;height:104px;border:1px solid rgba(255,255,255,.25);border-radius:5px;display:flex;align-items:center;justify-content:center;text-align:center;font-size:12px;color:#7C93A8;padding:8px;line-height:1.45;background:rgba(255,255,255,.04);margin-top:16px}

/* ---------- 页脚 ---------- */
footer{background:var(--navy-2);color:#9FB3C6;padding:60px 0 0;font-size:14px}
.f-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.12)}
footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px}
footer .f-brand{display:flex;gap:12px;align-items:center;margin-bottom:14px}
footer .f-brand img{height:36px;width:auto;filter:brightness(0) invert(1);opacity:.92}
footer .f-brand b{color:#fff;font-size:15.5px;font-weight:700}
footer p.desc{color:#B9CADB;font-size:13.5px;line-height:1.75}
footer ul{list-style:none;display:grid;gap:10px}
footer ul a{font-size:13.5px}
footer ul a:hover{color:var(--orange)}
.f-contact li{display:flex;gap:10px;align-items:flex-start;color:#B9CADB;font-size:13.5px;line-height:1.65}
.f-contact svg{width:17px;height:17px;stroke:var(--orange);fill:none;stroke-width:1.8;flex-shrink:0;margin-top:3px}
.f-contact b{color:#fff}
.qr{width:96px;height:96px;border:1px solid rgba(255,255,255,.25);border-radius:5px;display:flex;align-items:center;justify-content:center;text-align:center;font-size:12px;color:#7C93A8;padding:8px;line-height:1.4;margin-top:14px;background:rgba(255,255,255,.04)}
.f-bottom{padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#7C93A8}

/* ---------- 浮动联系 / 移动端吸底 ---------- */
.float-bar{position:fixed;right:22px;bottom:110px;z-index:70;display:flex;flex-direction:column;gap:10px}
.float-bar a,.float-bar button{width:58px;height:58px;border-radius:6px;background:#fff;border:1px solid var(--line);box-shadow:0 10px 24px rgba(15,46,76,.16);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;font-size:12px;color:var(--navy);font-weight:700;transition:.18s;cursor:pointer}
.float-bar a:hover,.float-bar button:hover{background:var(--navy);color:#fff;border-color:var(--navy)}
.float-bar svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8}
.float-bar .hot{background:var(--orange);color:#fff;border-color:var(--orange)}
.float-bar .hot:hover{background:var(--orange-d)}
.mobile-cta{display:none}

/* 复制成功轻提示 */
.toast{position:fixed;left:50%;bottom:130px;transform:translateX(-50%);z-index:200;background:rgba(10,31,54,.94);color:#fff;font-size:14px;padding:11px 20px;border-radius:5px;opacity:0;pointer-events:none;transition:opacity .22s}
.toast.show{opacity:1}

/* ---------- 响应式 ---------- */
@media(max-width:1200px){
  .biz-grid,.trust-grid{grid-template-columns:repeat(2,1fr)}
  .case-grid,.prod-grid{grid-template-columns:repeat(2,1fr)}
  .form-wrap{gap:30px}
  .calc{gap:36px}
}
@media(max-width:992px){
  .nav{display:none}
  .nav.open{display:flex;flex-direction:column;gap:0;margin-left:0;position:absolute;left:0;right:0;top:100%;background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);box-shadow:0 18px 32px rgba(15,46,76,.16);padding:6px 0;z-index:80}
  .nav.open a{padding:14px 24px;border-radius:0;font-size:15.5px}
  .nav.open a.on{background:var(--silver-2)}
  .nav.open a.on::after{display:none}
  .burger{display:flex}
  .topbar{display:none}
  .logo{margin-right:auto}
  .header .wrap{height:66px;gap:14px}
  .form-wrap{grid-template-columns:1fr;gap:26px}
  .news-grid{grid-template-columns:1fr}
  .calc{grid-template-columns:1fr;gap:32px}
  .f-grid{grid-template-columns:1fr 1fr;gap:30px}
  .hero-arrow{display:none}
}
@media(max-width:768px){
  section{padding:56px 0}
  .hero .wrap{padding-top:58px;padding-bottom:34px}
  .hero-stats .wrap{grid-template-columns:repeat(2,1fr)}
  .hero-stats .st{padding:14px 0}
  .hero-stats .st:nth-child(3)::before{display:none}
  .hero-stats .st b{font-size:24px}
  .hero-stats .st span{font-size:12px;margin-top:4px}
  .prod-grid,.case-grid,.biz-grid,.trust-grid{grid-template-columns:1fr}
  .float-bar{display:none}
  .mobile-cta{display:grid;grid-template-columns:repeat(3,1fr);position:fixed;left:0;right:0;bottom:0;z-index:90;background:#fff;border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom)}
  .mobile-cta a,.mobile-cta button{padding:13px 8px;text-align:center;font-size:14px;font-weight:700;color:var(--navy);border-right:1px solid var(--line);display:flex;flex-direction:column;align-items:center;gap:3px;background:none;border-top:0;border-left:0;border-bottom:0;cursor:pointer;font-family:inherit}
  .mobile-cta a:last-child,.mobile-cta button:last-child{border-right:0}
  .mobile-cta svg{width:19px;height:19px;stroke:currentColor;fill:none;stroke-width:1.9}
  .mobile-cta .hot{background:var(--orange);color:#fff}
  footer{padding-bottom:66px}
  .f-grid{grid-template-columns:1fr}
  .n-card{flex-direction:column}
  .n-card .n-img{width:100%;height:172px}
  .n-card .n-bd{padding:16px 18px}
  .sec-h{margin-bottom:26px}
  .logo .lg-txt i{display:none}
  .logo img{height:32px}
  .logo .lg-txt b{font-size:15px}
  .hd-cta .btn-wx{display:none}
  .hd-cta .btn-tel{font-size:0;padding:0;width:44px;height:44px;justify-content:center;flex-shrink:0}
  .hd-cta .btn-tel svg{width:19px;height:19px}
  .burger{flex-shrink:0}
  .header .wrap{gap:12px}
  .page-hero .wrap{padding:38px 24px 36px}
  .fld-row{grid-template-columns:1fr}
  .q-card,.info-card{padding:24px 20px}
  .modal{padding:20px 14px}
  .modal-body{padding:20px}
  .toast{bottom:96px}
}
@media(max-width:420px){
  .logo img{height:29px}
  .logo .lg-txt b{font-size:14px}
  .header .wrap{padding:0 16px;gap:10px}
  .hd-cta .btn-tel{width:40px;height:40px}
  .burger{width:40px;height:40px}
  .hero p.lead{font-size:15.5px}
  .detail-meta{font-size:12px;gap:12px}
}